<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Document</title>
</head>

<body>
     <button id="btn">获取电影列表</button>
    <ul id="ul">

         </ul>
    
    <script>
        let btn = document.getElementById("btn");
        let ul = document.getElementById("ul");
        btn.addEventListener("click", () => {
            //朝后端发一个请求，获取到需要的数据
            let xhr = new XMLHttpRequest();//创建了一个AJAX实例
            xhr.open('GET', 'https://mock.mengxuegu.com/mock/65a91543c4cd67421b34c898/movie/movieList', true);//设置请求参数);
            xhr.send();//发送请求
            xhr.onreadystatechange = () => {//检测请求的每个阶段
                if (xhr.readyState == 4 && xhr.status == 200) {
                    console.log(JSON.parse(xhr.responseText));
                    const movieList = JSON.parse(xhr.responseText).movieList;
                    for (let i = 0; i < movieList.length; i++) {
                        const li = document.createElement('li')
                        li.innerText = `${movieList[i].nm}--${movieList[i].star}`//movieList[i].nm+"--"+movieList[i].star
                        ul.appendChild(li)
                    }
                }

            }
        })
    </script>
</body>

</html>